Detect changes in associations

[chrisyeung1121]

In the nested object / assocation section,

I am wondering how to detect association changes and trigger reindex?

[redox]

Hey @chrisyeung1121,

currently there is not automatic way to do that, you need to call the reindex! method of the parent object yourself. One solution could be to implement the after_touch issue.

Are you used to use the touch callbacks?

[chrisyeung1121]

I have used somethings like

class Car
  belongs_to :user, touch: true
end

in which when cars get updated, the updated_at in user will change. but not the inverse.. I guess in this case I can have a after_touch call back in the User model. I wonder if I should use after_save or after_commit or after_touch though

[noahmatisoff]

+1

[dodeja]

+1

[julienbourdeau]

If I understand correctly this was documented some time ago: https://www.algolia.com/doc/framework-integration/rails/options/#nested-objectsrelations

I think I can close this issue. If I missed something, please let me know and I'll reopen it.